The 2nd Monitor

Vogel612

08:09

You've earned the C# badge

better...

Pimgd

08:21

first you initiate a context by calling avcodec_alloc_context3, then you pass it into avcodec_open2

what the f**k are those numbers for

Heslacher

Thaanks @Santa

Dan Pantry

08:42

Stored procedures in Entity Framework

also known as: "Today you're going to lose your sanity"

2

Captain Obvious

08:56

0

Q: Refactoring classes to use generics

I have written some code that handle restful service calls and parse the response XML into relevant JAXB annotated classes. At the moment I have seperate methods for each return types: public class RestBase { protected final RestClient restClient; public RestBase() { restClient ...

0

Q: Unit tests: avoiding overspecification

Say I have the following method that sends emails. I know I should have tests for the different status codes returned. I am also testing if the the methods CreateMail() and Send() are being called. I guess in the end what's important is if the success status is returned or not. Should I be testi...

c# unit-testing mocks

200_success

09:13

@Pimgd Keep it civil please. References to shooting/murdering anyone are not appropriate… and this is not the first time from you.

Vogel612

@200_success I must say, I understand him with that naming-scheme.

Pimgd

TT_TT I've gone past hate already, now it's just crying

2

200_success

I don't mind some swearing, but death threats crosses the line, I think.

Pimgd

hmm like that

Simon André Forsberg

09:36

Crying is better

Monking

Heslacher

0

A: Resilient Wrapper for Robocopy in C#

Naming The method StartCopy() implies that the copy process can also be stopped. So we should better rename it to CopyFiles(). Refactoring First step would be to refactor the composition of the commandline to a separate method which we will name ComposeCommandline. private static String...

Zombie

Monking @SimonAndréForsberg

Thanks @Santa

Vogel612

@Heslacher keep up the decimation ;)

Stack Exchange

09:58

0

Q: Are Monte Carlo algorithms off-topic by definition?

One of the key requirements for posting here is working code to the best of our knowledge Where working means that the code compiles and returns correct results. Where does that put Monte Carlo algorithms whose output may be incorrect with a certain (typically small) probability. Do...

discussion scope wording

Nobody

10:22

Monking @all

Vogel612

monking @Nobody

Dan Pantry

10:39

3 day weekend, woohoo

Captain Obvious

0

Q: HashTable with double hashing and dynamic size implementation

I am trying to implement a HashTable but I can't design it so that it work properly. I know how it should work and the general idea, but I am not able to implement it and I would like to ask for help. My HashTable is intended to be of a dynamic size and with double hashing. Although it may look a...

c++

Donald.McLean

Greetings, Programs.

Nobody

@CaptainObvious: Offtopic
> but I am not able to implement

Vogel612

@Donald.McLean Greetings, User

Heslacher

11:03

0

A: How to get KML color code from colordialog box more efficiently

In the System.Drawing namespace lives the ColorTranslator class which has an ToHtml() method which can be used here. A good way would be to create extension methods for this task. The first extension method will be named ToKMLColor and will expect an String parameter. By using dec.TryParse() and...

Zombie killing

Last for today

Monking @Nobody

Greetings User

Need some work done...

Pimgd

fixing spelling before I'm upvoting that =D

wow, it has bugs

Heslacher

@Pimgd Thanks for the edit

Nobody

@Pimgd: I should have used a better example in my meta question it is too easy and does not raise the problems I wanted discussed

Heslacher

@Pimgd my answer ?

Thanks @Santa

Pimgd

@Heslacher Yeah

You used ToKLMColor at the end

Heslacher

11:16

That count as spelling proble ;-)

@Pimgd Thanks also for the other edit.

Pimgd

hmm I should go through the rest of them, you make good points but your english twists them so they're wrong

"variable should be named camelCased" for instance

That means a variable shouldn't be called TimesBufferClear but camelCased

Heslacher

@Pimgd Changed

nhgrif

11:31

@rolfl ... given a post id, how do I get SEDE to return a link to the post in a column?

RubberDuck

Which meta @pimgd?

Pimgd

meta where

RubberDuck

Oh shoot. That wasn't you. It was @Nobody.

Nobody

@RubberDuck meta.codereview.stackexchange.com/questions/2353/…

Pimgd

well actually it was a very good example

because it made me think and realize that any metric is gonna lead to "where's the line"

so lets make the line go away

Nobody

11:40

@Pimgd: Okay, then it did exactly what I meant it to do

RubberDuck

Ahhh. Yeah. A better example may have helped.

Pimgd

explain it for me why you'd use monte carlo algorithm. This applies to such small statements

because WHY would you even do such a thing

and big algorithms (why did you opt for this approach?)

Nobody

The usual reason for Monte Carlo is because a deterministic algorithm would take too long

in that sense adding is not a good example

but I did not want to blow up the question with a realistic example

Pimgd

There's also an increasing amount of people doing stuff like project euler where it's more like "because I can"

RubberDuck

I see nothing wrong with it personally. It's intended to give a result that is close, but not 100% accurate, so it's not broken.

Nobody

11:42

Well the adding example is clearly broken

RubberDuck

Yes. The example is off topic, but the questions themselves aren't.

Pimgd

RFC 1149.5 specifies 4 as the standard IEEE-vetted random number.

RubberDuck

I was speaking generally.

Pimgd

Inverse Monte Carlo!

RubberDuck

Lol

Nobody

11:43

@Pimgd: Nope, this is too deterministic

Pimgd

Now it's not

Nobody

:P

The problem that I see is the following: If there is an implementation of a Monte Carlo algorithm and it behaves incorrectly but only slightly then it is broken code

but you cannot tell because you expect the algorithm to sometimes give wrong results

Pimgd

The thing is, what you're asking can scale really dangerously

You bring up addition

I present you another example: NP-Complete problems.

Non-bruteforce solutions don't give you the best result.

So would all of those algorithms be off-topic? Seems a bit unfair

Nobody

I did not say the best solution is the correct one

Pimgd

...

I'm translating your problem as "measuring is hard, lets estimate instead" = Monte Carlo

is that correct?

Nobody

11:48

I am fully aware of that, in fact it is what I wanted to poster child with this question

Pimgd

So why would code producing estimates be offtopic

Nobody

because the "working code" formulation can be misinterpreted in this way (hence the wording)

and because I find it is poorly understood when such questions are offtopic

the best we have is to say: your code does not correctly implement the algorithm, go to SO and get that fixed

Simon André Forsberg

@Nobody How does a Monte Carlo algorithm behave incorrectly?

Nobody

@SimonAndréForsberg: That is part of the question :)

On the one side of the scale are Monte Carlo algorithms that are clearly wrong like the add example

(unless you define that as working)

@Pimgd: You wanted to remove the line. How do you want to achieve this?

Simon André Forsberg

@Nobody what add example?

Nobody

12:00

@SimonAndréForsberg: See the updated question

Pimgd

@Nobody Remove the line by not making some arbitrary "is correct/complicated enough" question. Just explain it, and if there's no reason to actually use it, you'll be whacked over the head with it during a review. Basically: Monte Carlo demands context.

rolfl

@nhgrif You select a column that has a Post ID or reference to an ID, then you alias the output column select Votes.PostId as [Post Link]

The [Post Link] column name triggers the conversion in to special links.

There are a few other magic column names: data.stackexchange.com/help

Nobody

@Pimgd: Okay, but why do we make this "is correct" question with "normal" code?

Simon André Forsberg

@Nobody int add(int a, int b) { return rand(); } is not a proper Monte Carlo algorithm.

Pimgd

Because if code was broken, then it'd need to be fixed? No...

Because a fix changes the code? No...

Because we don't like broken code? No...

Nobody

12:14

@SimonAndréForsberg: Yeah, come up with a proper Monte Carlo algorithm that is clearly broken and I will use that as an example ;)

Pimgd

Because it's easier to review code when you can rely on it being correct?

Maybe?

Simon André Forsberg

@Nobody "a proper Monte Carlo algorithm" cannot be "clearly broken"

Nobody

@Pimgd: And that does not apply to Monte Carlo algorithm code?

Pimgd

Because you can compile it to see what it does? Maybe...

Nobody

@SimonAndréForsberg: But the code could be broken, couldn't it?

Malachi

12:16

@SimonAndréForsberg a recap, of my Zombie Kills

Pimgd

@Nobody Substracting the memory location of the first and the last node of a linked list to get it's size instead of iterating over it?

Simon André Forsberg

If it was about adding numbers, then I'd have an algorithm that would add 10000 numbers within a certain range - properly, then I do it the Monte Carlo way and I would just return the average of the real addition of those 10000 numbers. Monte Carlo for adding numbers however does not make sense

Pimgd

bleh

Nobody

@Pimgd: Clever :)

Pimgd

That's not clever, that's really scary hax

Nobody

12:18

For me clever code has clearly a negative meaning and that was what I meant with clever.

Pimgd

I know why we don't allow bork code but I have trouble formulating it

Nobody

@SimonAndréForsberg: Regarding a proper, obviously incorrect Monte Carlo algorithm: How about an implementation of the Solovay-Strassen-test that returns the exact opposite of the real result. It is a constructed example but it is definitely broken and definitely a Monte-Carlo algorithm

@Pimgd: Because code review/refactoring is not about changing behavior. We are only allowed to make the code return the same wrong result faster/more beautiful

Pimgd

Broken code tends to use a wrong approach. Reviewing this wrong approach is a waste of time because the fix (which is mandatory, remember, bork don't work) will replace the reviewed code.

well if you know all the answers why don't you post a self-answer already

by that definition the question's answer should have been obvious already

Nobody

it is a discussion and I am not sure myself on how to approach this

Pimgd

also partially wrong; it's encouraged to point out bugs with very big characters

If a function float div(float a, float b){ return a/b; } goes bork at b = 0 then you should say so

Nobody

12:30

@Pimgd: What do you refer to with "also partially wrong"? "If a function ..." you mean as OP?

after browsing a bit of meta I would say the main reason for requiring that the code must not be broken is to avoid overlap with SO

Simon André Forsberg

@Nobody Well, if it does not return the result a real Monte Carlo algorithm would return, then it's broken, yes.

Nobody

@SimonAndréForsberg: So we can agree that there is a spectrum from broken to non broken

and on this spectrum there is a line (or a grey zone) where it flips over

Simon André Forsberg

I think it's more of a black/white "Is it a correct Monte Carlo Algorithm?". Code that returns the opposite of what a real MCA would return is not a correct MCA.

boolean isTrue(boolean value) {
    return !value;
}

Nobody

okay, but I would not expect the possible errors to be always as easy to spot as the negation

Simon André Forsberg

^^ That's broken

Nobody

12:38

I have seen many times that (good) reviews are given and then someone comes along and says: The code is broken because of xy

Simon André Forsberg

@Nobody Then let's discuss the possible errors when they appear, and deal with them as they come. Let's try to not construct them in advance.

Nobody

And then I wonder: Should this be moved to SO now?

Simon André Forsberg

@Nobody Which question?

Nobody

Everybody else has covered everything I wanted to say. BUT they all missed the error. Boo ha ha. After the first iteration this return end; is unlikely to be the actual end iterator (it is the end of the current range which has been subdivided many times). eg: finding 2 in [1, 3, 4, 5] will return the iterator for 3. — Loki Astari yesterday

That is just the last one that I remembered, I am pretty sure that you have seen similar things happen

Simon André Forsberg

@Nobody The OP was probably not aware of that flaw, so I see no reason to move it to SO. Especially not when it has answers here already

Nobody

12:42

So the rule is: If we know the fault before any answers are posted it goes to SO?

Vogel612

@Nobody well usually just VTC

and make OP go to SO..

there's not many migrations away here.

Nobody

Okay the effect is the same: There are no answers on CR for these questions

Vogel612

codereview.stackexchange.com/tools/posts/migrated/away

2

^ 2k users link..

Pimgd

Faaancy

Vogel612

IoC -> Inversion of Casing.

Pimgd

12:47

because caps

2

Nobody

Cool I did not know this page exists

Vogel612

@Nobody it's a little hidden and there's nothing really unknown there..

but it's a centralized place for cool information..

Pimgd

@Nobody partially wrong because if you see a bug, you should point it out, instead of blindly optimizing what there is.

why is it black

Vogel612

Hacker Vision extension

invert the complete color-scheme

Pimgd

Code Review <ILLEGIBLE>

2

Maybe it says bota

Vogel612

12:52

I like the mse chatroom more though..

Pimgd

pictuuure

Vogel612

they initially had a blue ribbon, but:

the orange one is waaay cooler.

I turned it off on all sites that initially had a dark background theme though...

Pimgd

Yeah but that chat contains spam =D This one doesn't

Vogel612

@Pimgd it isn't spam

It's a game. and that room is reserved only for that game..

Pimgd

You're right, it's only pm

Vogel612

12:55

chat.meta.stackexchange.com/rooms/721

> Quote of the day: "Boobs to men are what laser pointers are to cats"

3

Pimgd

> :-D

Morwenn

13:10

Hello everybody! :)

RubberDuck

@Morwenn Hola

Morwenn

Is there any git guru aroung?

Nobody

I am certainly no guru but maybe I can help nonetheless?

Morwenn

Thanks :)

A friend of mine has a project. He created a C++11 branch in his repo. I want to help him with the C++11 branch. Therefore, I wanted to fork not the whole repo but only the C++11 branch.

I don't really know how I would do that.

Vogel612

You could create a separate repo..

and checkout only the C++11 branch with tracking back..

or rather just pull this branch only.

Nobody

13:15

I am not aware of being able to setup a remote for a branch only

Morwenn

By creating a separate repo, you mean cloning the original?

Nobody

however you could try to pull only the branch from the remote

Vogel612

@Morwenn well you could create your own repo

as a separate one..

then git remote add his-repo <git-url>

amon

88

Q: Clone only one branch

I would like to know how I could clone only one branch instead of cloning the whole Git repository.

git github

Vogel612

and go for git pull his-repo <branch>

but only push to your own repo.

Morwenn

13:17

So I have to do it as a clone, not as a mere fork. Ok.

Nobody

@amon: Nice, I did not know this one yet

Morwenn

Thanks for your help everyone. I'll ask the aforementioned friend whether he's ok with that :)

amon

Note that cloning just one branch is not going to make much of a difference, as the history of that branch contains most earlier history as well. Branches in Git aren't heavy-weight data structures, they are just pointers to various commits.

Nobody

yet branches can diverge heavily

Vogel612

or rather, cloning the whole repo and just using one branch is about the same, as long as you don't pull it...

@Nobody as long as you don't pull anything, you should be good to go.

fetches just get you the pointer, and the heavy lifting is done by the pull anyways.

Nobody

13:22

pull in which direction?

Vogel612

assume you got one repo, with multiple independent branches.

Nobody

@Morwenn: What is your reason not to clone the whole repo?

Vogel612

as long as you just pull one of those and none of the others, it shouldn't make too much of a diefference to just cloning the --single-branch

Nobody

well, your initial clone makes the difference

Morwenn

@Nobody Once it has been cloned, does it still appear in the original repo fork diagram?

Vogel612

13:24

just don't run a git pull repo

Nobody

@Morwenn: You are talking about github?

Morwenn

@Nobody Yes :p

Vogel612

Then it does...

Nobody

That is another story

Vogel612

check this: github.com/skiwi2/TCG/network

I cloned the repo to my github, but it still shows in the network.

Morwenn

13:26

That's nice. I love how it makes keeping track of things visually easy :)

Vogel612

@Morwenn you bet ;)

Captain Obvious

-1

Q: Overloaded Operators

May someone please help me with the following problem on overloaded operators: Consider the mathematical construct of a matrix (http://mathworld.wolfram.com/Matrix.html) Create an Abstract Data Type for representing a matrix of arbitrary dimensions using an underlying two dimensional dynamic ar...

c++ beginner

Morwenn

I think I'll be going for a git clone -b then^^

Vogel612

@Morwenn if you got github, you can even go via web-interface

Morwenn

I'm almost as lost with the web interface as I am with the command line actually xD

Vogel612

13:30

top right inside a repo when logged in

Morwenn

Haha, I just understood that forking and cloning were basically the same thing xD

Since I only ever forked with the interface, I totally forgot that there is no git fork command.

That's probably one of my most stupid mistakes this month.

Malachi

@Morwenn me too, I am learning a little bit here and there though.

Morwenn

Since I generally use git for my own repos where nobody contributes, I tend to forget how to use it when there are several other contributers.

Captain Obvious

13:47

0

Q: LinQ query performs poor according Perfrormance analyzer VS2012

I've a Linq query that performs poor. var minuteValues = ValuesInMemory.Where(o => o.Key.Day == tmpValue.QuoteDate.Day && o.Key.Hour == tmpValue.QuoteDate.Hour && o.Key.Minute == tmpValue.QuoteDate.Minute && ...

c# linq datetime

Dan Pantry

'ello guys

Phrancis

Monking!

Dan Pantry

I'm sure that's an inside joke

Heslacher

Monking

12

A: What's a Zombie? And what are the many other memes of Code Review?

Meme: Monking Originator: Morwenn Cultural Height: The 2nd Monitor Background: A morning greeting to the Monkey doing his monkey-business, in other words: monking Examples: A small chat search

@DanPantry

Dan Pantry

AHhhh. Unfortunately it is teh afternoon here, but thanks all the same

Nobody

13:50

Monkernoon @DanPantry

Dan Pantry

Aftermonk doesn't quite have the same ring to it

Vogel612

@DanPantry additionally after Monk is somewhere around midnight..

Yuushi

that's about the time here

Phrancis

Monknight!

Captain Obvious

0

Q: Javascript/jQuery Image Slider

I've just wrote this class for an image slider(? It cross fades rather than sliding, so a class rename may be beneficial). It's my first proper attempt at javascript OOP. Can anyone see any real issues with this? // Wrapper is the container element, in this case $('#sliderWrap'). // images is an...

javascript jquery oop

rolfl

13:54

Monking!

Yuushi

sounds like a Buddhist version of Batman

Dan Pantry

what have I started :\

Yuushi

nothing that wasn't probably inevitable anyway

Phrancis

@rolfl ... Monking ;-)

Dan Pantry

I need to flesh out a github portfolio I feel to show to potential employers

I have nothing to wave about due to no formal education in programming

What do

Yuushi

13:56

depends where you live and who you're applying to

Malachi

I will follow you @DanPantry

Dan Pantry

Wales, so it's pretty barren.

I'm not lookign to apply to anyone in particular. I just want to build up a portfolio :-)

Matt Giltaji

Go to the programming puzzles SE and write code to solve the challenges. You need some sample code

Malachi

github.com/malachi26

Matt Giltaji

Doesn't really matter what it does

Malachi

13:57

2 full rows!!!

Dan Pantry

@MattGiltaji I was thinking about that. I'm not much of a golfer but I could probably do the rest

@Malachi: github.com/DanPantry ~

Yuushi

I've honestly never been asked. I've put it on my resume, but I doubt it's ever been looked at

Dan Pantry

Well, I've never been asked either

But I have nothing else to back myself up other than 1 year experience lol

Because I have no degree

Simon André Forsberg

@DanPantry I know that feeling. Completely self-taught myself.

Dan Pantry

I've been thinking about joining some OS projects but I always feel like I can't really contribute to them ;-;

Simon André Forsberg

13:59

@DanPantry You started programming one year ago?

Nobody

Looking at the people who are around me in university I would say the degrees are overrated

3

Malachi

Kill Shot?

0

A: Does this simple memory pool use too much memory?

you should always use Curly Braces around if statements and for loops. it's the safe thing to do, especially when you are dealing with Memory Management. something small like this: if(temp == NULL) return NULL; Can be one lined if(temp == NULL) {return NULL;} Returning in an if sta...

Yuushi

I did nothing but math in uni

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